This major accident delayed metro construction by 20 years here!

This is a story how an incorrectly excavated pit for an underground track switch chamber led to a huge tragic accident, when a huge building collapsed into the pit. This caused long-term consequences for the overall metro / metrotram / U-bahn construction project in Cologne, Germany.
#cologne #köln #ubahn #germany
Sources:
Wikipedia
Information boards near the cite of the accident
Music:
William Claeson - Cologne, 4 AM
Hampus Naeselius - Demolition Crew